Fuel agitator



Jan. 18, 1938. H. A. RIDET 2,105,988

FUEL AGITATOR Filed oct. 2, 1934 ATTORNEYS. l

Patented Jan. 18, 1938 This invention relates tofurnaces andhasffor its object to provide an improvedjfuel,.agitator designed for use with furnaces in'which thefuel is fed from underneath the firebed.A

A further object of the invention is the'provision of a fuel agitator andoperating'means therefor by which an oscillating movement is imparted to the agitator to improvethe combustion of the fuel. f

A further object of the inventionis the pro- 'vision of means foi conducting afluid cooling 1f claim. (ci. 11o- 44) Externally of the furnace, the tubular member a ofthe agitator andthe conduit III are suitably connected at 5 and I0 respectively in a fluid circuit whereby a fluid cooling medium is circulated through the tubular member and conduit and the passages between the latter as well as between the branch conduits il and inner surfaces jof the tubular fingers 9.

' f V'I'he end of the tubular member 'of the agimedium to the fuel agitator tonpreventthe lat-l.

ter from becoming overheated; i

In the accompanying drawing wherein an v9.15--` proved embodiment of the' inventionfisqiliustrated: f

Figure 1 is a view partly inside Aelfkzvation' andV partly in section showing the invention applied to an underfeed furnace.

2o the ing movement to the fuel agitator.

Fig. 2 is a fragmentarytop pian vievirfshowingl operating mechanism for imparting oscillat-A Referring to the drawing in detail, thefuel agitator is indicated at 5 and includes a tubular 25 ported on a spring 5b arranged inthe front wall 6 of the furnace and extending exteriorly ofA body member 5a mounted in a bearing 6a suptubular member of the agitator. 'I'he conduit I0 y is provided with branch conduits i I which extend into thetubuiar fingers 9 ai id terminate in spaced relation to the ends thereof to permit the free passage of cooling medium.

tator located externally of the furnace is supported in a bearing I2 and is provided with a gear lo i3 meshing with a second gear Ilxed to a shaft I5.' The shaft I5 is mounted in a bearing 116 and is provided with an arm I1 connected by a link I8 with a 'I'he shaft. 20 is preferably connected with a power driven part of the furnace whereby rotary movement is imparted thereto and in operation .the motion is transmittedto the shaft i5 through the crank pin is, link la and arm n, thereby producing an oscillating movement of the fuel vagitator 5. The-circulation of the cooling fluid through the inner end of the agitator and the tubular fingers 9 ,thereof insures proper cooling of the agitator and prevents damage thereto by exposure to the heat.

What I claim'is:

In con bination, an underfeed furnace including a ret art, a fuel agitator including a tubular member extending through a lateral wall of the furnace and immediately above the Iretort and mounted for oscillation about its longitudinal axis, tubular ngers carried by and communicating with said member and extending into the retort, means conducting a cooling fluid to said ngers, a gear on said member exterior to the furnace, a second gear meshing with said iir'st'gear, a crank connected with said second gear so as toimpart an oscillatory motion thereto. 40

HENRI A. RrDE'r.

crank pin I9 on a driving shaft M 

